
function randomData() {
    now = new Date(+now + oneDay);
    value = value + Math.random() * 21 - 10;
    return {
        name: now.toString(),
        value: [
            [now.getFullYear(), now.getMonth() + 1, now.getDate()].join('/'),
            Math.round(value)
        ]
    };
}
let data = [];
let now = new Date(1997, 9, 3);
let oneDay = 24 * 3600 * 1000;
let value = Math.random() * 1000;
for (var i = 0; i < 1000; i++) {
    data.push(randomData());
}

// 动态数据 + 时间坐标轴
export const DynamicDataTimeAxisOption = {
    title: {
        text: 'Dynamic Data & Time Axis'
    },
    tooltip: {
        trigger: 'axis',
        formatter: function (params) {
            params = params[0];
            var date = new Date(params.name);
            return (
                date.getDate() +
                    '/' +
                    (date.getMonth() + 1) +
                    '/' +
                date.getFullYear() +
                    ' : ' +
                params.value[1]
            );
        },
        axisPointer: {
            animation: false
        }
    },
    xAxis: {
        type: 'time',
        splitLine: {
            show: false
        }
    },
    yAxis: {
        type: 'value',
        boundaryGap: [0, '100%'],
        splitLine: {
            show: false
        }
    },
    series: [
        {
            name: 'Fake Data',
            type: 'line',
            showSymbol: false,
            data: data
        }
    ]
};
// setInterval(function () {
//     for (var i = 0; i < 5; i++) {
//         data.shift();
//         data.push(randomData());
//     }
//     myChart.setOption({
//         series: [
//             {
//                 data: data
//             }
//         ]
//     });
// }, 1000);